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INSTITUTO NACIONAL DE TECNOLOGIA AGROPECURIA



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INSTITUTO NACIONAL DE TECNOLOGIA AGROPECURIA


[09 January 2007]

[SUBMISSION: SPANISH]




INTERNATIONAL UNION OF FOREST RESEARCH ORGANIZATIONS


[24 August 2006]

[SUBMISSION: ENGLISH]


Question 1. Does your country have any plantations, either commercial or experimental, of genetically modified trees?
• From 1988 – 2002 there have been over 200 field trials of genetically modified trees across 15 countries.

• More than 20 species have been modified, with eleven traits being investigated.

• Sources: www.fao.org/docrep/008/ae574e/ae574e00.htm; Forest Biotechnology in Latin America, Institute of Forest Biotechnology, March 2-5, 2004, Concepcion, Chile.
Question 2. Has your country developed any platform/discussion forum/national committee etc. dealing with genetically modified trees?
• IUFRO Sponsored ‘Tree Biotechnology in the New Millennium’ July 22-27, 2001,

Stevenson, Washington, USA.

• IUFRO Tree Biotechnology 2005, November 6 – 11, 2005, Pretoria, South Africa.

• Numerous national and international meetings routinely hold sessions dealing with genetically modified trees. A google search for the term “forestry biotechnology meeting” produces 4.81 million hits.

• In addition there have been several international discussion forums that have been open to the public. (OECD, and FAO fora) FAO: Electronic forum on biotechnology – Forestry Sector, April 25 to June 30, 2000 (http://www.fao.org/Biotech/Conf2.htm)
Question 3. Does your country have any guidelines or regulations for minimizing the impacts of genetically modified trees for scientific and/or commercial purposes?

If yes, please list them according to the categories below:
Environmental impacts of genetically modified trees (Example: effects on native ecosystems, use of herbicide)
• Existing biosafety regulations and guidelines already allow for the effective assessment of a wide variety of species, including tree species, using a case-bycase approach (consistent with the risk assessment recommendations in Annex III of the BSP) based on the biology of the species. They are flexible enough to address the diverse biology found among tree species as well as non-tree species.

• In addition a regulatory system might also allow for the assessment of positive environmental impacts such as reducing pressures on native ecosystems, reductions in energy consumption and the environmental footprint of production technologies (bioremediation), and the impact of efficient feedstocks for biofuels as alternatives to dependency on fossil fuels.


Cultural impacts of genetically modified trees (Example: positive or negative impacts on indigenous and local communities and their traditional knowledge)
• Restoration of endangered tree species such as American chestnut and Elm in the US, Kauri in New Zealand, and Quele in Chile.

• The negative impact could not be assessed due to the lack of long term trials; however, the Chinese experiment on poplar should be carefully and closely monitored to allow such assessments.


Socio-economic impacts of genetically modified trees (Example: positive or negative effects on quantity, quality and economic value of forest production; positive or negative impacts on livelihoods of communities)
• GM papayas preserved a significant economic advantage for Hawaiian farmers who compete with papaya growers in other parts of the tropics.

• By replacing infected orchards with resistant trees the prevalence of the virus was reduced to low enough levels to allow for continued production of non-genetically modified varieties that would otherwise have been lost.

• The failure to develop such technologies could have significant negative socioeconomic impacts on local communities whose livelihoods depend on a crop threatened by disease. By employing new technologies, including genetic engineering, the livelihoods of papaya farmers in Hawaii have been protected. Based on this success this approach is now being explored in other parts of the world where papaya farmers face similar threats. Impeding the development and deployment of such new technologies leaves countries and communities at a disadvantage in the global economy.

OREGON STATE UNIVERSITY


[29 August 2006]

[SUBMISSION: ENGLISH]



Question 1. Does your country have any plantations, either commercial or experimental, of genetically modified trees?

YES. There have been a large number of plantations, mostly small in size, of GM trees. The large majority are research field trials; the only commercialized tree is virus-resistant GM papaya, which is widely grown in Hawaii, USA. The full list of field trials, of which there have been hundreds, can be found on several web sites, including http://www.isb.vt.edu/ Despite the very large number of trials, I am aware of no reports of adverse ecological consequences of any kind.



Question 2. Has your country developed any platform/discussion forum/national committee etc. dealing with genetically modified trees?

YES. The USA has hosted many national meetings, and taken part officially as host, or by sending scientific or government officials, to numerous international meetings where GM trees and their science, benefits, and safety have been main topics. I have been a speaker in several of them. See below for a partial list (those I have taken part in).

The USDA Biotechnology Regulatory Service (http://www.aphis.usda.gov/brs/) and the Institute for Biotechnology (http://www.forestbiotech.org/) have organized national meetings on a wide range of science, environmental, and cultural issues surrounding GM trees.

I helped organize and have taken part in several meetings as Chairman, International Union of Forestry Research Organizations Working Party on Molecular Genetics of Forest Trees, S.04-06, 1995-1999. The most prominent meeting—which dealt with science, regulation, and cultural issues—and the one from which a book was produced that I co-edited, was:



  1. ♦ Meeting: International Symposia on Ecological and Societal Aspects of Transgenic Plantations, and International Organization of Forest Research Organizations (IUFRO) Section on Molecular Biology of Forest Trees. Stevenson, Washington, USA, 2001.

  2. ♦ Book: Strauss, S.H., and H.D. Bradshaw (Editors). 2004. The Bioengineered Forest: Challenges to Science and Society. Resources for the Future, Washington, D.C. 245 pp. (http://www.rff.org/rff/rff_press/bookdetail.cfm?outputid=7659)

A number of scientists, representing many different countries, produced a position statement that was published in the international leading journal Nature Biotechnology (attached). It emphasized the need for field research to study benefits and risks in a scientifically meaningful way. It states: “Field trials are crucial for all … research objectives, and can be done with a high degree of environmental safety.” The reference to this paper, and a public lecture on the position statement, are:



  1. ♦ Strauss, S., W. Boerjan, J. Cairney, M. Campbell, J. Dean, D. Ellis, L. Jouanin, and B. Sandberg. 1999. Forest biotechnology makes its position known. Nature Biotechnology 17:1145.

  2. ♦ Strauss, S.H. 1999. Lessons from the IUFRO position statement on transgenic forest plantations. Proceedings of the OECD (Organization for Economic Cooperation and Development) Workshop on Environmental Considerations of Genetically Modified Trees. Norwegian Institute for Nature Research, Trondheim, Norway, September 13-15, 1999.

Examples of other significant meetings that have taken place in the USA that dealt with GM tree issues, and at which I have spoken, are:

  1. ♦ Workshop on Horticultural, Urban Forestry, Health and Environmental Benefits of Flowering Modification in Transgenic Trees, Institute for Forest Biotechnology/North Carolina Biotechnology Center, February 2003. (Chair)

  2. ♦ Forest biotechnology symposium at United Nations (UNIDO) Global Forum on Biotechnology, Conception, Chile, March 2004. (organized by Institute of Forest Biotechnology)

  3. ♦ National meeting on regulation of genetically engineered trees, Greenbelt, MD, July 2003. Organized by USDA APHIS Biotechnology Regulatory Services.

There have also been extensive discussion forums carried on via publications in the biotechnology and forestry literature. Some examples that I have taken a direct role in follow:



Publications: Regulatory policy analysis/discussion

  1. 1. Bradford, K., N. Gutterson, A. Van Deynze, W. Parrott, and S.H. Strauss. 2005. Response to letters on “Regulating biotech crops sensibly: Lessons from plant breeding, biotechnology and genomics.” Nature Biotechnol. 23:439-444.

  2. 2. Valenzuela, S., and S.H. Strauss. 2005. Lost in the woods. Nature Biotechnol. 23:532-533.

  3. 3. Strauss, S.H., S. DiFazio, and R. Meilan. 2001. Genetically modified poplars in context. Forestry Chron. 77(2):1-9.

  4. 4. Strauss, S.H. 2002. A biological view of field testing: Familarity and scale provide high levels of environmental safety during field trials of RMS transgenic plants. In Proceedings of Workshop on “Criteria for Field Testing of Plants with Engineered Regulatory, Metabolic and Signaling Pathways,” L.L. Wolfenbarger (Ed.), Information Systems for Biotechnology, Virginia Polytechnic and State University, Blacksburg, VA. Pp. 69-73. http://www.isb.vt.edu/isb_publications.cfm.

  5. 5. Strauss, S.H., S. DiFazio, and R. Meilan. 2000. Challenges to commercial uses of transgenic trees in forest plantations: The case of poplars. Pp. 191-195 In Proceedings of the 6th International Symposium on Biosafety of Genetically Modified Organisms, C. Fairbairn, G. Scoles, and A. McHughen, Eds., University of Extension Press, University of Saskatchewan, Saskatoon, Canada.

  1. 6. Strauss, S.H., J. Davis, J. Eaton, R. Hall, G. Newcombe, and G. Tuskan. 1999. Report of the poplar working group: p. 105-112 in: Proceedings, workshop on ecological effects of pest resistance genes in managed ecosystems, eds P.L. Traynor and J.H. Westwood, January 31 - February 3, 1999, Bethesda, Maryland. Information Systems for Biotechnology, Virginia Polytechnic Univ. (http://www.nbiap.vt.edu/)

Publications: Science and technology development

  1. 7. Strauss, S.H. 2004. Forest biotechnology – thriving despite controversy. Review of “Molecular Genetics and Breeding of Forest Trees” by S. Kumar and M. Fladung. New Phytol. 163:9-11.

  2. 8. Campbell, M.M., A.M. Brunner, H.M. Jones, and S. H. Strauss. 2003. Forestry’s Fertile Crescent: The application of biotechnology to forest trees. Plant Biotech. J. 1:141-154.

  3. 9. Adams, J.M., G. Piovesan, S.H. Strauss, and S. Brown. 2002. Genetic engineering of forest trees against introduced pests and diseases. Conserv. Biol. 16:874-879.

  4. 10. Bradshaw, H.D., Jr., and S.H. Strauss. 2000. Breeding strategies for the 21st century: Domestication of poplar. In: Dickmann, D.I., Isebrands, J.G., Eckenwalder, J.E. and Richardson, J. (eds.). Poplar Culture in North America, Part 2, Chapter 14. NRC Research Press, National Research Council of Canada, Ottawa, ON K1A 0R6, Canada, p. 383-394.


3. Does your country have any guidelines or regulations for minimizing the impacts of genetically modified trees for scientific and/or commercial purposes?

YES. We have guidelines for both minimizing adverse impacts while allowing critical field research on the many benefits that GM trees can provide. There are separate guidelines for laboratory research, contained field trials, and deregulation/commercial use. The USDA APHIS (http://www.aphis.usda.gov/brs/) regulates field uses of GM trees along with other types of crops, and their regulations continue to be improved and made more rigorous so there is a reasonable balance of benefit from field research and risk. I interact with USDA APHIS regularly because of our many field trials of GM trees, and personally have seen the rigor of their regulations increase a great deal in recent years. In all cases, regulations vary greatly depending on the trait, on a case-by-case basis; in the USA there is clear consensus based on advice from the National Academics of Science and the Ecological Society of America that the trait, rather than the method of genetic modification, should be the focus of regulation and benefit/risk assessments. For example, see:



  1. 1. Snow AA, Andow DA, Gepts P, Hallerman EM, Power A, Tiedje JM, Wolfenbarger LL (2005) Genetically engineered organisms and the environment: current status and recommendations. Ecol Appl 15:377-404


Environmental impacts of genetically modified trees

There are both substantial environmental benefits as well as risks. A major environmental benefit is production of more wood, biomass, or energy on less land, reducing pressure for further plantations or farms. Direct benefits of GM trees, that have been widely discussed include:



  1. • Reduced pesticide/herbicide ecotoxicological impacts

  2. • Increased soil quality/reduced erosion from low-tillage practices for weed control

  3. • Improved bioremediation of toxins and excess nutrients

  4. • Reduced effluent from pulping/bioenergy processing

  5. • Reduced energy use in processing from trees with modified chemistry

The issues surrounding GM trees, environmental issues, and genetic containment have been discussed in several recent national/international meetings. Recent examples of meetings where I have spoken are given below:



  1. 1. Genetic containment of poplar plantations. International Poplar Symposium IV, Nanjing, China. 2006.

  2. 2. Genetic engineering approaches to breeding sterility and reduced invasiveness. USDA-ARS floral and nursery crops workshop, Portland, OR. 2006.

  3. 3. Genetic containment of forest plantations. In Growing Trees and Stemming Risks: Symposium on Ecological Impacts Associated with the Products and Practices of Forest Biotechnology. Institute of Forest Biotechnology, Vancouver, British Columbia, Canada. 2006.

  4. 4. Domestication of poplar for bioenergy: Can genomics and transformation change the rules? Department of Energy/British Petroleum Joint Workshop on Plant Genomics, Washington, DC. 2005.

  5. 5. Environmental benfits and risks of genetically modified trees. Austrian College of Agriculture-US Land Grant College Consortium, Vienna. 2005.

  6. 6. Proposal to establish a public biotech crop trait program (BCTP) to assist in regulatory approval for “minor” biotech crops. USDA Workshop on Public Research and Regulatory Review of Small-Market Biotechnology-Derived Crops, Washington, DC. 2004.

  7. 7. Genetic engineering as a conservation tool: The case for tree biotechnology. Biotechnology & Biodiversity Symposium, Society for Conservation Biology Annual Meeting, Columbia University, New York City. 2004.

  8. 8. Managing gene flow in transgenic and exotic poplars. Brussolera-Branca Foundation Workshop on Biodiversity and Management of Poplars, Milan, Italy. 2004.

  9. 9. Gene flow control in trees: Technology development in transgenic poplars. Society for In Vitro Biology Congress, Portland, Oregon. 2003.

We have published a general review of environmental issues, as well as a specific study of the benefits and risks from herbicide tolerant GM trees:



  1. 1. James, R., S. DiFazio, A. Brunner, and S.H. Strauss. 1998. Environmental effects of genetically engineered woody biomass crops. Biomass & Bioenergy 14:403-414.

  2. 2. Strauss, S.H., S.A. Knowe, and J. Jenkins. 1997. Benefits and risk of transgenic, Roundup Ready® cottonwoods. J. Forestry 95(5):12-19.

We have published a number of analyses and reviews of issues surrounding gene dispersal from from GM trees:



  1. 1. DiFazio, S.P., G.T. Slavov, J. Burczyk, S. Leonardi, and S.H. Strauss. 2004. Gene flow from tree plantations and implications for transgenic risk assessment. In C. Walter and M. Carson (eds.) Plantation Forest Biotechnology for the 21st Century. Research Signpost, Kerala, India, p. 405-422.

  2. 2. Slavov, G.T., S.P. DiFazio, and S.H. Strauss. 2003. Gene flow in forest trees: Gene migration patterns and landscape modeling of transgene dispersion in hybrid poplar. In H.C.M den Nijs, D. Bartsch and J. Sweet (Eds.), Introgression from Genetically Modified Plants into Wild Relatives, CAB International, UK, pp. 89-106

  3. 3. Slavov, G.T., S.P. DiFazio, and S.H. Strauss. 2002. Gene flow in transgenic trees: From empirical estimates to transgenic risk assessment. In Proceedings of Consequences of Gene Flow, A Scientific Methods Workshop: Ecological and Agronomic Consequences of Gene Flow from Transgenic Crops to Wild Relatives. Ohio State University, Columbus, March 5-6, 2002. Pp. 94-114. http://www.biosci.ohio-state.edu/~lspencer/Proceedings.pdf

  4. 4. DiFazio. S.P., S.Leonardi, S. Cheng, and S.H. Strauss. 1999. Assessing potential risks of transgene escape from fiber plantations. In P.W. Lutman (ed.) Gene flow and agriculture: relevance for transgenic crops. Symposium Proceedings No. 72. British Crop Protection Council, Farnham, UK. pp. 171-176.

We have published a number of review/analyses of means to alleviate environmental impacts via genetic confinement technologies:



  1. 1. Brunner, A., A. Elias, K. Van Wormer, J. Li, H. Wei, O. Shevchenko, R. Mohamed, B. Montgomery, S.P. DiFazio, & S.H. Strauss. 2006. Genetic containment of forest plantations. Tree Genetics & Genomes (in press)

  2. 2. Meilan, R., A. Brunner, J. Skinner, and S.H. Strauss. 2001. Modification of flowering in transgenic trees. In: Molecular Breeding of Woody Plants. Progress in Biotechnology Series. A. Komamine and N. Morohoshi, editors. Elsevier Science BV, Amsterdam. pp. 247-256.

  3. 3. Brunner, A.M., R. Mohamed, R. Meilan, L.A. Sheppard, W.H. Rottmann, and S.H. Strauss. 1998. Genetic engineering of sexual sterility in shade trees. J. Arboricult. 24(5):263-273.

  4. 4. Strauss, S.H., W.H. Rottmann, A.M. Brunner, L.A. Sheppard. 1995. Genetic engineering of reproductive sterility in forest trees. Molec. Breed. 1:5-26.

  5. 5. Strauss, S.H., G. Howe, and B. Goldfarb. 1991. Prospects for genetic engineering of insect resistance in forest trees. For. Ecol. Manag. 43:181-209.


Cultural impacts of genetically modified trees

We have published on ethical issues surrounding GM trees, and on their social and environmental certification standards. Our analyses have suggested that there is likely

to be strong ethical support in the USA and many other countries for well-motivated applications of GM trees.


  1. 1. Strauss, S.H., M.M. Campbell, S.N. Pryor, P. Coventry, and J. Burley. 2001. Plantation certification and genetic engineering: Banning research is counterproductive. J. Forestry 99(12):4-7.

  2. 2. Strauss, S.H., P. Coventry, M.M. Campbell, S.N. Pryor, and J. Burley. 2001. Certification of genetically modified forest plantations. Internat. Forestry Rev. 3(2):87-104.

  3. 3. Thompson, P.B., and S.H. Strauss. 2000. Research ethics for molecular silviculture. P. 585-611 In: Molecular Biology of Woody Plants, S.M. Jain & S.C. Minocha, Eds., Kluwer Academic Publishers, The Netherlands.

  4. 4. Strauss, S.H., K. Raffa and P. List. 2000. Ethics and transgenic plantations. J. Forestry 98(7):47-48.


Socio-economic impacts of genetically modified trees

The economic benefits from GE trees have been discussed as part of our papers on certification in relationship to GE, as well as with respect to herbicide and insect tolerance traits. In both of the latter cases, deployment of these technologies has substantial economic benefits, but requires that highly effective containment technologies are in place, intellectual property issues be settled, and that social consensus re. ethical acceptability be explored and a decision reached. Both the scientific research and social discussions are ongoing in the USA.



  1. 1. Strauss, S.H., P. Coventry, M.M. Campbell, S.N. Pryor, and J. Burley. 2001. Certification of genetically modified forest plantations. Internat. Forestry Rev. 3(2):87-104.

  2. 2. Strauss, S.H., S.A. Knowe, and J. Jenkins. 1997. Benefits and risk of transgenic, Roundup Ready cottonwoods. J. Forestry 95(5):12-19.

  3. 3. Meilan, R., Ma, C., Cheng, S., Eaton, J.A., Miller, L.K., Crockett, R.P., DiFazio, S.P., and Strauss, S.H. 2000. High levels of Roundup® and leaf-beetle resistance in genetically engineered hybrid cottonwoods. In: K.A. Blatner, J.D. Johnson, and D.M. Baumgartner, eds., Hybrid Poplars in the Pacific Northwest: Culture, Commerce and Capability. Washington State University Cooperative Extension Bulletin MISC0272, Pullman, WA. pp. 29-38.

Many of the publications cited above can be viewed or downloaded at this web site:

http://www.cof.orst.edu/coops/tbgrc/Staff/strauss/publications.htm


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